摘要
研究水附着状态下不同基体组织球墨铸铁的断裂韧性脆化行为的结果表明 ,水附着状态下 ,具有较高抗拉强度的奥贝球铁、淬火回火球铁及珠光体球铁的弹塑性断裂韧性 (JⅠc)显著下降 ,发生明显的断裂韧性脆化行为 ;
The embrittlement behavior of fracture toughness for ductile cast iron with various kinds of matrix by contact with water was investigated in this paper. The elastic plastic fracture toughness (JⅠc) of austempered, quenched tempered and pearlitic ductile iron that has relatively high tensile strength decreased remarkably, shows obvious embrittlement behavior of fracture toughness. But, as cast with higher ferrite content and ferritic ductile cast iron exhibit no embrittlement behavior of fracture toughness under condition of contact with water.
出处
《铸造》
CAS
CSCD
北大核心
2003年第1期33-37,共5页
Foundry
基金
中国博士后基金资助项目 (2 0 0 1 )
关键词
球墨铸铁
水附着
断裂韧性
脆化行为
ductile cast Iron
contact with water
fracture toughness
embrittlement behavior
